According to the FDA Product Label, parenteral B12 (which includes both IV and IM routes) is essential for patients who cannot absorb the vitamin through the gastrointestinal tract
NAD+ is a coenzyme essential for various biological processes, including DNA repair, mitochondrial function, and reducing oxidative stress
The service Ive received at other locations does not compare
(1996) reported the analog was 1.5-2x more potent than equimolar IGF-1 in catabolic rat models, and broader pharmacology literature places it at roughly 3x potency overall
It has been shown to promote gut health, reduce inflammation, and potentially address conditions like inflammatory bowel disease and leaky gut syndrome
When any of those slips, the result is usually minor and short-lived, but it is worth understanding what can actually go wrong, and why we think this is a job for a clinician rather than a kitchen-table DIY